CVE-2021-32749 is a remote code execution vulnerability affecting Fail2ban versions 0.9.7 and prior, 0.10.0 through 0.10.6, and 0.11.0 through 0.11.2, specifically impacting the mail-whois action. It carries a CVSS score of 8.1 (HIGH), indicating a network-based attack with high impact on confidentiality, integrity, and availability, but requiring high attack complexity due to the need for man-in-the-middle or whois server compromise. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant media coverage, though it has received some community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 0.9.7CPE matchmatch criteria | cpe:2.3:a:fail2ban:fail2ban:*:*:*:*:*:*:*:* | ||
>= 0.10.0, < 0.10.7CPE matchmatch criteria | cpe:2.3:a:fail2ban:fail2ban:*:*:*:*:*:*:*:* | ||
>= 0.11.0, < 0.11.3CPE matchmatch criteria | cpe:2.3:a:fail2ban:fail2ban:*:*:*:*:*:*:*:* | ||
34CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | ||
35CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:H/A:N
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.